It’s officially summer on Oahu, but an unusually wet June means water consumption is down, wells are fuller, Honolulu firefighters are battling fewer wildfires and the July 9 mango festival in Waikiki will include imported mangoes from Mexico and Nicaragua.

"My yard is unusually swampy," said Tom Birchard, a senior forecaster for the National Weather Service who lives in Wahiawa Heights.

Out of the state’s four airport rain gauges, the one at Honolulu Airport saw the greatest jump from this month: 1.36 inches through Monday, compared with 0.39 inches for the same period last year, the National Weather Service said.

La Niña conditions are giving way to more normal weather patterns, "but the atmosphere got the memo late," National Weather Service forecaster Victor DeJesus said. "So it’s been a little more winterlike to begin the summer."

The extra rain meant lots of good news for the Honolulu Board of Water Supply.

"In June we normally start to notice consumption start to rise," spokesman Kurt Tsue said. "Because it’s been raining, however, more people are using less water to water their lawns."

From June 1 through 18, water customers sucked up an average of only 137.6 million gallons of water per day, compared with 152.68 million gallons of water per day for the same period last year.

Over the previous five years, the daily average consumption on Oahu has been 158 million gallons of water per day.

"We’re seeing a significant decrease in consumption, highly attributable to the increased rainfall," Tsue said. "People are watering their yards less because they’re getting hydrated naturally."

At the same time, Board of Water Supply wells are running one to two feet higher compared with levels at the same time last year, Tsue said.

"We’re reaping the benefits of increased wet weather," he said.

Rain and wind, however, teamed up to damage Oahu’s mango crop, leading to a shortage, said Janelle Saneishi, spokeswoman for the state Department of Agriculture.

"The weather wasn’t right, so they didn’t bloom all at once," Saneishi said. "It will delay the crops for a couple of more months into fall. Overall, farmers like the extra rain right now because the reservoirs are full and it might last them through the summer."

Problems for Hawaii’s mango growers began with a lot of unusually warm rain in December that stretched into June, said Mark Suiso, owner of the Makaha Mangoes farm.

Mango growers typically expect a wet winter season to be followed by dry weather. Instead, "all of a sudden we had a lot of warm rain," Suiso said.

All the water caused mango trees to sprout new leaves rather than flowers.

"The good news is that we’ll have a really good season next year, and we’ll have much healthier trees from all of these leaves that will be mature," Suiso said.

For now, though, production at Makaha Mangoes is "way down," and Suiso is delivering less than 50 pounds of mangoes a week — when he should be delivering 500 to 700 pounds.

"This is not a good mango season at all," he said.

For last year’s second "Mangoes at the Moana" festival at the Moana Surfrider, Suiso provided 1,000 pounds of mangoes representing nearly 30 different varieties.

This year, Suiso will be lucky to scare up "several hundred pounds" representing only five or six varieties. And some will have to be imported from Mexico and Nicaragua.

"We just don’t have the volume," Suiso said. "There’s not much you can do. … It’s like standing up to a tidal wave."

The rain has been welcomed by Honolulu firefighters. They have responded to 96 wildfires this year through June 20, compared with 238 for the same period last year.

"It’s been noticeable," said Honolulu fire Capt. Terry Seelig. "Because we’ve had a wet winter that’s gone on throughout the summer, the fuel has a higher moisture than you would normally see during the summer."

Like others, Seelig worries that the unusual summer rain will end just in time for the Fourth of July weekend.

"Even though it’s been a wet June, we’re starting to dry out," Seelig said. "Firecrackers are a hot ignition source. If used improperly, they have caused wildfires and structure fires."